US 12,455,411 B2
Light source device and projector
Yuichiro Iwama, Azumino (JP); and Norio Imaoka, Takamori-machi (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Aug. 2, 2024, as Appl. No. 18/793,252.
Prior Publication US 2025/0044501 A1, Feb. 6, 2025
Int. Cl. F21V 8/00 (2006.01); G02B 21/16 (2006.01)
CPC G02B 6/0093 (2013.01) [G02B 6/0003 (2013.01); G02B 6/0068 (2013.01); G02B 6/0085 (2013.01); G02B 21/16 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A projector comprising:
a light source including a light source substrate having a first surface and a second surface opposite to the first surface, and a light emitter disposed on the first surface of the light source substrate;
a light guide guiding light emitted from the light emitter of the light source;
a support supporting the light guide in a groove;
a fixator provided to an outer peripheral edge portion of the light source substrate for fixing the light source and the support to each other so that the light emitter disposed on the first surface of the light source substrate and the light guide are opposed to each other; and
a convex portion located at an inner peripheral side of the light source substrate with respect to the fixator, wherein
the support includes the groove in which the light guide is disposed,
the light source substrate and the support are in contact with each other and the convex portion,
the convex portion is disposed on at least one of an opposed surface opposed to the first surface of the light source substrate and the first surface of the light source substrate to separate the light emitter from the support and the light guide,
the convex portion is provided to the support,
the light source substrate of the light source includes a base, a first insulating layer disposed on one surface of the base, an interconnection layer stacked at an opposite side of the first insulating layer to the base, and a second insulating layer stacked at an opposite side of the first insulating layer to the base so as to cover at least a part of the interconnection layer, and
the convex portion is in contact with the first insulating layer.